Energy levels and radiative transition rates for Ba XLVIII

• Lowest 431 levels of Ba XLVIII are calculated.
• Radiative data for E1, E2, M1 and M2 transitions from the lowest 3 levels to 431 levels are presented.
• Lifetimes for lowest 431 fine structure levels are provided.

Energy levels and radiative rates are reported for transitions in F-like Ba XLVIII. Configuration interaction has been included among 27 configurations (generating 431 levels) over a wide energy range up to 618 Rydbergs, and the fully relativistic multi-configurational Dirac–Fock method adopted for the calculations. To assess the accuracy, calculations have also been performed with the flexible atomic code, FAC. Radiative rates, oscillator strengths and line strengths are reported for all electric dipole, magnetic dipole, electric quadrupole, and magnetic quadrupole transitions from the lowest 3 levels, although calculations have been performed for a much larger number of levels. We have made comparisons of our results with existing available results and a good agreement has been achieved. Additionally, lifetimes for all 431 levels are listed.